[Numpy-discussion] numpy 1.10.1 reduce operation on recarrays

josef.pktd at gmail.com josef.pktd at gmail.com
Fri Oct 16 13:58:39 EDT 2015

was there a change with reduce operations with recarrays in 1.10 or 1.10.1?

Travis shows a new test failure in the statsmodels testsuite with 1.10.1:

ERROR: test suite for <class

line 131, in _handle_constant
    const_idx = np.where(self.exog.ptp(axis=0) == 0)[0].squeeze()
TypeError: cannot perform reduce with flexible type

Sorry for asking so late.
(statsmodels is short on maintainers, and I'm distracted)

statsmodels still has code to support recarrays and structured dtypes from
the time before pandas became popular, but I don't think anyone is using
them together with statsmodels anymore.

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